Trimmer potentiometer TM-7
3 TURNS CERMET TRIMMERS
FeaturesFeatures
- Fine setting is possible
- Extremely small backlash (In house comparison)
ELECTRICAL CHARACTERISTICS
Power ratings | 0.5 W (70 °C) 0 W (120 °C) |
---|---|
Nominal resistance range | 50 Ω ~ 2 MΩ |
Resistance tolerance | ± 10 % |
Resistance law | Linear law(B) |
Maximum input voltage | DC300 V or power rating, whichever is smaller |
Maximum wiper current | 100 mA or power rating, whichever is smaller |
Effective electrical turn | 2.5 turns |
End resistance | 1 % or 2 Ω , whichever is greater |
C.R.V. | 1 % or 3 Ω , whichever is greater |
Operating temp. range | −55 ~ 120 °C |
Temp. coefficient | ± 100 10-6/°C maximum |
Insulation resistance | 1000 MΩ minimum (DC500 V) |
Dielectric strength | AC900 V, 60 s |
Net weight | Approx. 0.50 g (TM-7EP, EW) Approx. 0.69 g (TM-7ES, EX) |
MECHANICAL CHARACTERISTICS
Mechanical turn | 3 turns |
---|---|
Operating torque | 20 mN·m {204 gf·cm} maximum |
Mechanical stop | Clutch action |
Rotational life | 200 cycles ΔR/R ≦ ± (2 Ω +3 %) |
Terminal strength | 10 N {1.02 kgf} minimum(Tensile strength) |
Thrust to shaft | 10 N {1.02 kgf} minimum |
Solderability | 245 ± 3 °C, 2 ~ 3 s |
{ }:Reference only
ENVIRONMENTAL CHARACTERISTICS
Test item | Test conditions | Specifications |
---|---|---|
Shock | 981 m/s2, 6 ms 6 directions for 3 times each | [ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
Thermal shock | −65 ~ 125 °C(0.5 h), 5 cycles | [ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
Humidity | −10 ~ 65 °C ( Relative humidity 80 ~ 98 %),10 cycles, 240 h | [ΔR/R ≦ 2 %] |
Vibration | Amplitude 1.52 mm or Acceleration 196 m/s2, 10 ~ 2000 Hz, 3 directions, 12 times each |
[ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
Load life | 70 °C, 0.5 W, 1000 h | [ΔR/R ≦ 3 %] [S.S. ≦ 1 %] |
Low temp. operation | −55 °C, 2 h | [ΔR/R ≦ 2 %] [S.S. ≦ 2 %] |
High temp. exposure | 120 °C, 250 h | [ΔR/R ≦ 3 %] [S.S. ≦ 2 %] |
Immersion seal | 85 °C, 60 s | No leaks (No continuous bubbles) |
Soldering heat | Flow soldering :260 ± 3 °C, 5 ~ 6 s, two times maximum Manual soldering : 380 ± 10 °C, 3 ~ 4 s |
[ΔR/R ≦ 1 %] |
Δ R/R:Change in total resistance S.S. :Setting stability
MAXIMUM INPUT RATINGS
Nominal resistance values (Ω) | Resistance code | Maximum input voltage(V) | Maximum wiper current(mA) |
---|---|---|---|
50 | 500 | 5.00 | 100 |
100 | 101 | 7.07 | 70.7 |
200 | 201 | 10.0 | 50.0 |
500 | 501 | 15.8 | 31.6 |
1k | 102 | 22.4 | 22.4 |
2k | 202 | 31.6 | 15.8 |
5k | 502 | 50.0 | 10.0 |
10k | 103 | 70.7 | 7.07 |
20k | 203 | 100 | 5.00 |
50k | 503 | 158 | 3.16 |
100k | 104 | 224 | 2.24 |
200k | 204 | 300 | 1.50 |
500k | 504 | 300 | 0.60 |
1M | 105 | 300 | 0.30 |
2M | 205 | 300 | 0.15 |
PART NUMBER DESIGNATION
TM-7 | E | P | 50 kΩ | (503) |
---|---|---|---|---|
Series name |
Terminal pin
E:Sn (Lead-free) |
Product shape |
Resistance value |
Resistance code |
|
LIST OF PART NUMBERS
Nominal resistance values | 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ, 200kΩ, 500kΩ, 1MΩ, 2MΩ |
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※ The above part numbers are all available as the standard item respectively with the combination of <Nominal resistance values>
※ Verify the above part numbers when placing orders.
※ Verify the above part numbers when placing orders.
PART NUMBER | Adjustment position | Shape of Terminal | Pieces in package | CAD |
---|---|---|---|---|
TM-7EP | Top adjustment | Through hole | 50 pcs./pack | |
TM-7EW | Top adjustment | Through hole | 50 pcs./pack | |
TM-7ES | Side adjustment | Through hole | 50 pcs./pack | |
TM-7EX | Side adjustment | Through hole | 50 pcs./pack |
OUTLINE DIMENSIONS
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
![](/file/img/tm-7_out.png)
![](/file/img/tm-7_out2.png)
Documents
Environmental Data
- ●The above contents and descriptions are subject to change without notice.